1213120202031 has 16 divisors (see below), whose sum is σ = 1797344845920. Its totient is φ = 808688422080.

The previous prime is 1213120201927. The next prime is 1213120202071. The reversal of 1213120202031 is 1302020213121.

1213120202031 is a `hidden beast` number, since 121 + 312 + 0 + 202 + 0 + 31 = 666.

It is not a de Polignac number, because 1213120202031 - 2¹³ = 1213120193839 is a prime.

It is a super-2 number, since 2×1213120202031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213120201995 and 1213120202013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213120202071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239040 + ... + 1990341.

It is an arithmetic number, because the mean of its divisors is an integer number (112334052870).

Almost surely, 2^{1213120202031} is an apocalyptic number.

1213120202031 is a deficient number, since it is larger than the sum of its proper divisors (584224643889).

1213120202031 is a wasteful number, since it uses less digits than its factorization.

1213120202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243303 (or 3243297 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1213120202031 its reverse (1302020213121), we get a palindrome (2515140415152).

The spelling of 1213120202031 in words is "one trillion, two hundred thirteen billion, one hundred twenty million, two hundred two thousand, thirty-one".